Organ or other toy with equalized pressure supply



y 3952 J. E. NASH 2598,416

ORGAN OR OTHER TOY WITH EQUALIZED PRESSURE SUPPLY Filed March 10, 1949 2 SHEETS-SHEET 1 FEGB. 7

FIG.2.

unnnucluuuuuunu INVENTOR. JAMES EMERY NASH y 7, 1952 J. E. NASH 2,598,416

ORGAN OR OTHER TOY WITH EQUALIZED PRESSURE SUPPLY Filed March 10, 1949 2 SHEETS--SHEET 2 O '-F TIO DO GOOGO 06000 0 0 INVENTOR. JAMES EMERY NASH TTORNEY Patented May 27, 1952 UNITED STATES PATENT OFFICE ORGAN OR OTHER TOY WITH EQUALIZED PRESSURE SUPPLY James Emery Nash, West Point, Ga-

Application March 10, 1949, Serial No. 80,621

2 Claims. 1

The invention herein disclosed relates to toy organs and various other toys which may be operable by compressed air. I

General objects of the invention are to provide an organ type of toy which will be instructive, interesting and entertaining and which will have combined with it a compact source of pressure supply equalized to furnish operating pressure to the toy throughout a considerable range of action.

Special objects of the invention are to provide the'compressed air pressure supplying medium in a form readily usable with different toys designed to be operated by compressed air instead of the usual spring motors.

Further important objects of the invention are to provide apparatus of the character indicated in a simple, inexpensive form of construction, made up of but few, rugged, easily assembled parts.

Other desirable objects and the novel features of construction, combination and relation of parts through which the purposes of the invention are attained are set forth or will appear in the course of the following specification.

The drawings accompanying and forming part of the specification illustrate certain present practical embodiments of the invention. Structure and arrangement, however, may be modified and changed as regards the immediate illustration, all Within the true intent and broad scope of the invention as hereinafter defined and claimed.

Fig. 1 in the drawings is a broken and part sectional top plan view of a toy organ unit embodying features of the invention;

Fig. 2 is a front elevation of the same;

Fig. 3 is an end view of the organ;

Fig. 4 is an enlarged vertical sectional view of the unit as on substantially the plane of line 4-4 of Fig. 2;

Fig. 5 is an enlarged broken sectional detail as on substantially the plane of line 55 of Fig. 1;

Fig. 6 is a broken part sectional view of the foot pump which may be detachably connected with the organ unit.

The organ shown consists of musically pitched pipes 1 supplied with compressed air from a trunk or wind chest 8 through control of valves 9 actuated by the keys I0.

As a special feature the pipes and wind chest may be molded in plastic material, hard rubber or the like. The pipes may be molded in sep arate pieces or all be molded in one or two or other number of separately formed blocks. The pipe block or blocks may be mounted directly on top of the distributor block or trunk 8, as

shown in Fig. 4, with the individual pipes in communication with the trunk passage 1 I by separate branches or passages 12, the valves 9 being located to control these separate channels.

The key levers Ill are shown pivoted on a support rod It with their rearward extended ends positioned to lift the valves against the tension of the valve closing springs I l and the key returning springs 15.

The operating pressure for the pipes is stored and equalized in the base of the instrument in a reservoir cylinder" it supported between the end plates 1 l, beneath the keyboard.

This storage cylinder, like the other parts, may be a molded plastic unit having a solid closed end I8 and closed at the opposite end by a removable screw cap IS.

The solid end of the storage cylinder is shown connected with the wind chest by tubing 20 and as having an inlet tube 2! connected therewith. The latter is shown as extended out through the end of the cabinet and terminating in a self-closing check valve fitting 22 for coupling engagement with a companion fitting on the air pump to be described.

The cylinder l6 preferably is of sufiicient capacity to hold compressed air for operation of the toy over an appreciable period of time and means are provided for equalizing the pressure over such a period of operation.

The pressure equalizing means consists in the illustration, of a close fitting but freely sliding piston 23 in the cylinder impelled by a. coiled spring 24 toward the closed end of the cylinder.

This spring is held confined in the cylinder by the removable screw cap I9, and the latter is shown as having a vent 25 enabling the piston to float freely in the cylinder balanced between the spring and compressed air pressures.

The outlet 20 from the equalizer cylinder is shown as having a valve 26 which may be turned off, if desired, for instance for first accumulating or for holding energy stored up in the compressed air cylinder.

The pump for furnishing compressed air to the reservoir cylinder is shown in Fig. 6 as a cylinder 21 pivoted at 28 on a base 29 and containing a piston 30 pivotally connected at 3! with a foot pedal 32 pivoted on the base at 33. A pedal lifting spring is indicated at 34. The cylinder is shown as having fiexible tubing 35 terminating in a companion coupling 36 for connection with the storage cylinder coupling 22.

This detachable relation of foot pump and 3 equalizer-storage chamber permits of locating the foot pump Wherever most convenient and of the quick detachment of the latter when not in actual use.

This quick detachability is of further advantage, enabling the foot pump to be used as required with any one of a number of different toys operated by compressed air, such for example as toy automobiles, motor boats, airplanes and the like.

The organ toy, constructed of molded plastic or other material parts, may be made up very simply and in a practical, attractive form with the compressed air reservoir and equalizer wholly concealed. While desirable to leave the supply coupling 22 in an exposed position for quick connection and disconnection of the air pump, this coupling may be concealed in the base of the instrument where it will not ordinarily be seen.

The pipes 1 are, in effect, small size pitched whistles and molded in the block form illustrated, may be of any desired number, providing an organ of any desired range or scale. The keyboard is of compact design and may be arranged to operate additional octaves Without increasing the size of the keyboard or the body of the toy.

What is claimed is: V

1. A compressed air toy of the character herein disclosed comprising a keyboard having individually operable keys, a compressed air storage cylinder disposed longitudinally beneath said keyboard and having a vent in one end, a pressure equalizing piston Wholly enclosed Within and arranged to freely float in said cylinder, a

spring impelling said piston toward the opposite end of the cylinder, air pressure supply connections With said latter end of the cylinder and whereby under pressure of admitted air said free-floating piston will be forced back against 4 the tension of said spring, a distributor having valves operable by the keys of said keyboard, air flow connections from said latter end of the cylinder to said distributor and compressed air actuated means connected with said distributor through the medium of said valves.

2. A compressed air toy of the character herein disclosed comprising a keyboard having individually operable keys, acompressed air storage cylinder disposed longitudinally beneath said keyboard and having a vent in one end, a pressure equalizing piston wholly enclosed within and arranged to freely float in said cylinder, a spring impelling said piston toward the opposite end of the cylinder, air pressure supply connections with said latter end of the cylinder and whereby under pressure of admitted air said free-floating piston will be forced back against the tension of said spring, a distributor having valves operable by the keys of said keyboard, air flow connections from said latter end of the cylinder to said distributor, compressed air actuated means connected with said distributor through the medium of said valves and a manually operable cut-oil valve in said air flow connections between the storage end of said cylinder and said distributor for retaining air under pressure accumulated in the storage end of said cylinder.

JAMES EMERY NASH.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,528,405 Craig Mar. 3, 1925 1,995,751 Sampietro Mar. 26, 1935 2,197,773 Rosenfield Apr. 23, 1940 2,353,890 Green July 18, 1944 

